[gdal-dev] Does OGR support GeoPackage enums in write mode (or at all?)

[Andrea Aime]

Hi,
I'm trying to dump a large PostGIS database into a GeoPackage. In the
original database some columns
are strings, but could be more efficiently represented as enums, as they
have a small set of values.

GeoPackage has a native notion of enums, check the spec and search for
"table 27" for an example:
http://www.geopackage.org/spec/

However I cannot find mention of them in the GPKG driver documentation:
https://gdal.org/drivers/vector/gpkg.html
I quickly grepped into the geopackage sources for "enum", could not find it
in the geopackage sources.

Also looked at the "mapFieldType" ogr2ogr parameter and at OGR SQL, did not
find anything there either.

So I'm wondering, is there direct support for enum fields? Any way to map a
string column to enum during
a ogr2ogr call?

Best Regards,

Andrea Aime == GeoServer Professional Services from the experts! Visit
http://goo.gl/it488V for more information. == Ing. Andrea Aime @geowolf
Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa
(LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549
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